... I can only recommend !!! wanted me first the original battery (1030mAh Nikon - 40) Order of the D5100 had then seen but at the last moment the word about this new Nikon 1250 mAh !!! Top goods and all original (packaging / description / case, etc. - fit 100% and invites Perfect & capacity more than the original of D5100) So if a replacement toying with the idea to make battery = necessarily order the new type (also considering the cost to a HAMA BATTERY 850 mAh already 40 at Media Markt then an original Nikon with 1250 mAh is for 53 quasi gift)